On Be/X-ray binaries with an intermediate-mass black hole  

作　　者：Tao Li Xiang-Dong Li 

机构地区：[1]Department of Astronomy, Nanjing University, Nanjing 210093, China [2]Key Laboratory of Modern Astronomy and Astrophysics （Nanjing University）, Ministry of Education, Nanjing 210093, China

出　　处：《Research in Astronomy and Astrophysics》2010年第7期672-680,共9页天文和天体物理学研究（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 10873008);the National Basic Research Program of China (973 Program 2009CB824800)

摘　　要：We adopt the tidal truncation model proposed by Negueruela and Okazaki for Be/X-ray binaries to investigate the influence of intermediate-mass black holes （IMBHs） on Be-star disks. We show that the viscous decretion disks around Be stars are generally truncated ineffectively under the tidal force of IMBHs. Combining this with observations of Be/X-ray binaries, we suggest that Be/IMBH X-ray binaries may appear as recurrent luminous X-ray transients with quasi-periodic X-ray outbursts.We adopt the tidal truncation model proposed by Negueruela and Okazaki for Be/X-ray binaries to investigate the influence of intermediate-mass black holes （IMBHs） on Be-star disks. We show that the viscous decretion disks around Be stars are generally truncated ineffectively under the tidal force of IMBHs. Combining this with observations of Be/X-ray binaries, we suggest that Be/IMBH X-ray binaries may appear as recurrent luminous X-ray transients with quasi-periodic X-ray outbursts.

关 键 词：black hole physics -- circumstellar matter -- stars emission-line  Be -- X-rays BINARIES 

分 类 号：P145.8[天文地球—天体物理] O614.21[天文地球—天文学]